From near Babylon, it is believed to have split into two routes, one traveling northeast then east through Ecbatana (in present-day Iran) and on along the Silk Road, the other continuing east through the future Persian capital Susa (in present-day Iran) and then southeast to Persepolis.
The treaty of versailles was unfair towards Germany, so that would probably the spark on the western front.
Hitler prepared rather long for an all out war, he took parts of former germany back in peace. Later the USSR (union of Russia and a lot of other countries) took Poland together. (they had a non-attacking treaty). With attacking poland, France and the UK declared war and Germany took over France, Belgium and Holland almost instantly
Formation and Early History of the NHL (1917–41) The National Hockey League (NHL) was established in Montréal, Québec, on 26 November 1917. ... The Ottawa Senators dominated the 1920s, with six league titles and four Stanley Cup victories; however, the team folded in 1934.